ProductiveMetals ATM10 Compat

+17 new hopper melting recipes — every meltable hopper in ATM10: - Vanilla hopper -> 450 mB molten iron - EverythingCopper hoppers, all 8 oxidation/waxed states -> 450 mB molten copper each - EnderIO impulse hopper -> molten iron - PneumaticCraft liquid hopper -> molten iron - Mob Grinding Utils absorption hopper -> molten iron + molten obsidian + molten ender - Utilitarian fluid hopper -> molten iron (incl. bucket content) - SecurityCraft reinforced hopper -> molten iron Hopper minecarts were already meltable; pneumaticcraft:omnidirectional_hopper is compressed iron (no PMW fluid); hopper upgrades (Sophisticated Storage, NaturesAura) apply no metal.